<script setup>
import {
    Edit,
    Delete
} from '@element-plus/icons-vue'

import { ref } from 'vue'

//文章分类数据模型
const categorys = ref([])

//用户搜索时选中的分类id
const categoryId = ref('')

//用户搜索时选中的发布状态
const state = ref('')

//文章列表数据模型
const articles = ref([])

//分页条数据模型
const pageNum = ref(1)//当前页
const total = ref(20)//总条数
const pageSize = ref(7)//每页条数

//当每页条数发生了变化，调用此函数
const onSizeChange = (size) => {
    pageSize.value = size
    getArticleList()
}
//当前页码发生变化，调用此函数
const onCurrentChange = (num) => {
    pageNum.value = num
    getArticleList()
}

//文章分类列表查询
import { articleListService, articleAllListService, articleAddService, articleUpdateService, articleDeleteService } from '@/api/article.js'
const getArticleCategoryList = async () => {
    //获取所有分类
    let result = await articleListService();
    console.log(result.data)
    categorys.value = result.data
}

// 文章列表查询
const getArticleList = async () => {
    const params = {
        pageNum: pageNum.value,
        pageSize: pageSize.value,
        categoryId: categoryId.value ? categoryId.value : null,
        state: state.value ? state.value : null
    }
    //获取文章列表
    let result = await articleAllListService(params)
    total.value = result.data.total
    articles.value = result.data.items

    // 根据文章分类ID获取分类名称
    for (let i = 0; i < articles.value.length; i++) {
        for (let j = 0; j < categorys.value.length; j++) {
            if (articles.value[i].categoryId === categorys.value[j].id) {
                articles.value[i].categoryName = categorys.value[j].categoryName
                // console.log(articles.categoryName)
            }
        }
    }
}

getArticleCategoryList();
getArticleList();


import { Plus } from '@element-plus/icons-vue'
//控制抽屉是否显示
const visibleDrawer = ref(false)
//添加表单数据模型
const articleModel = ref({
    title: '',
    categoryId: '',
    coverImg: '',
    content: '',
    state: ''
})


// 引入富文本编辑器
import { QuillEditor } from '@vueup/vue-quill'
import '@vueup/vue-quill/dist/vue-quill.snow.css'


// 导入token
import { useTokenStore } from '@/stores/token.js'
import { ElMessage, ElMessageBox } from 'element-plus';
const tokenStore = useTokenStore()


// 上传成功的回调函数
const uploadSucess = (result) => {
    articleModel.value.coverImg = result.data
}


// 添加文章
const addArticle = async (clickStatus) => {
    // 发布状态赋值给数据模型
    articleModel.value.state = clickStatus
    // 调用接口
    const recult = await articleAddService(articleModel.value);
    ElMessage.success(recult.message ? recult.message : '添加成功')
    // 关闭抽屉
    visibleDrawer.value = false
    // 刷新列表
    getArticleList()
}


// 编辑文章
const updateArticle = async (clickStatus) => {
    // 发布状态赋值给数据模型
    articleModel.value.state = clickStatus
    // 调用接口
    const recult = await articleUpdateService(articleModel.value);
    ElMessage.success(recult.message ? recult.message : '修改成功')
    // 关闭抽屉
    visibleDrawer.value = false
    // 刷新列表
    getArticleList()
}
// 抽屉标题
const titleName = ref('')

const uploadData = (row) => {
    visibleDrawer.value = true
    titleName.value = '编辑文章'
    articleModel.value.title = row.title
    articleModel.value.categoryId = row.categoryId
    articleModel.value.coverImg = row.coverImg
    articleModel.value.content = row.content
    articleModel.value.id = row.id
    articleModel.value.state = row.state

    // 
}

// 清空数据
const clearData = () => {
    visibleDrawer.value = true;
    titleName.value = '添加文章'
    articleModel.value.title = ""
    articleModel.value.categoryId = ""
    articleModel.value.coverImg = ""
    articleModel.value.content = ""
    articleModel.value.id = ""
    articleModel.value.state = ""

}

// 删除文章
const deleteData = (row) => {

    ElMessageBox.confirm(
        '你确定要删除吗？',
        '温馨提示！',
        {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning',
        }
    )
        .then(async () => {
            // 删除
            const res = await articleDeleteService(row.id);
            ElMessage({
                type: 'success',
                message: '删除成功！',
            })
            // 重新获取数据
            getArticleList();
        })
        .catch(() => {
            ElMessage({
                type: 'info',
                message: '取消删除！',
            })
        })
}

</script>
<template>
    <el-card class="page-container">
        <template #header>
            <div class="header">
                <span>文章管理</span>
                <div class="extra">
                    <el-button type="primary" @click="clearData">添加文章</el-button>
                </div>
            </div>
        </template>
        <!-- 搜索表单 -->
        <el-form inline>
            <el-form-item label="文章分类：" class="custom-width">
                <el-select placeholder="请选择" v-model="categoryId">
                    <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
                    </el-option>
                </el-select>
            </el-form-item>

            <el-form-item label="发布状态：" class="custom-width">
                <el-select placeholder="请选择" v-model="state">
                    <el-option label="已发布" value="已发布"></el-option>
                    <el-option label="草稿" value="草稿"></el-option>
                </el-select>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" @click="getArticleList">搜索</el-button>
                <el-button @click="categoryId = ''; state = ''">重置</el-button>
            </el-form-item>
        </el-form>
        <!-- 文章列表 -->
        <el-table :data="articles" style="width: 100%; height: 400">
            <el-table-column label="文章标题" prop="title"></el-table-column>
            <el-table-column label="封面">
                <template #default="{ row }">
                    <img :src="row.coverImg" alt="" style=" height: 40px; width: 50px;">
                </template>
            </el-table-column>
            <!-- <el-table-column label="内容" width="200" prop="content">
                <template #default="{ row }">
                    <div style=" overflow: hidden; text-overflow: ellipsis;">
                        {{ row.content }}
                    </div>
                </template>
            </el-table-column> -->
            <el-table-column label="分类" prop="categoryName"></el-table-column>
            <el-table-column label="发表时间" prop="createTime"> </el-table-column>
            <el-table-column label="更新时间" prop="updateTime"> </el-table-column>
            <el-table-column label="状态" prop="state"></el-table-column>
            <el-table-column label="操作" width="100">
                <template #default="{ row }">
                    <el-button :icon="Edit" circle plain type="primary" @click="uploadData(row)"></el-button>
                    <el-button :icon="Delete" circle plain type="danger" @click="deleteData(row)"></el-button>
                </template>
            </el-table-column>
            <template #empty>
                <el-empty description="没有数据" />
            </template>
        </el-table>
        <!-- 分页条 -->
        <el-pagination v-model:current-page="pageNum" v-model:page-size="pageSize" :page-sizes="[7]"
            layout="jumper, total, sizes, prev, pager, next" background :total="total" @size-change="onSizeChange"
            @current-change="onCurrentChange" style="margin-top: 40px; justify-content: flex-end" />

        <!-- 抽屉 -->
        <el-drawer v-model="visibleDrawer" :title="title" direction="rtl" size="50%">
            <!-- 添加文章表单 -->
            <el-form :model="articleModel" label-width="100px">
                <el-form-item label="文章标题">
                    <el-input v-model="articleModel.title" placeholder="请输入标题"></el-input>
                </el-form-item>
                <el-form-item label="文章分类">
                    <el-select placeholder="请选择" v-model="articleModel.categoryId">
                        <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
                        </el-option>
                    </el-select>
                </el-form-item>
                <el-form-item label="文章封面">

                    <!-- 
                        auto-upload: 设置是否自动上传
                        action: 设置上服务器接口路径
                        name: 设置上传的文件字段名
                        headers: 设置上传请求头
                        on-success: 上传成功回调
                    -->
                    <el-upload class="avatar-uploader" :auto-upload="true" :show-file-list="false"
                        action="/event/upload" name="file" :headers="{ 'Authorization': tokenStore.token }"
                        :on-success="uploadSucess">
                        <img v-if="articleModel.coverImg" :src="articleModel.coverImg" class="avatar" />
                        <el-icon v-else class="avatar-uploader-icon">
                            <Plus />
                        </el-icon>
                    </el-upload>
                </el-form-item>
                <el-form-item label="文章内容">
                    <div class="editor">
                        <quill-editor theme="snow" v-model:content="articleModel.content" contentType="html">
                        </quill-editor>
                    </div>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary"
                        @click="titleName == '添加文章' ? addArticle('已发布') : updateArticle('已发布')">发布</el-button>
                    <el-button type="info"
                        @click="titleName == '添加文章' ? addArticle('草稿') : updateArticle('草稿')">草稿</el-button>
                </el-form-item>
            </el-form>
        </el-drawer>
    </el-card>
</template>
<style lang="scss" scoped>
.page-container {
    min-height: 100%;
    box-sizing: border-box;

    .header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .custom-width {
        width: 200px;
    }

    /* 抽屉样式 */
    .avatar-uploader {
        :deep() {
            .avatar {
                width: 178px;
                height: 178px;
                display: block;
            }

            .el-upload {
                border: 1px dashed var(--el-border-color);
                border-radius: 6px;
                cursor: pointer;
                position: relative;
                overflow: hidden;
                transition: var(--el-transition-duration-fast);
            }

            .el-upload:hover {
                border-color: var(--el-color-primary);
            }

            .el-icon.avatar-uploader-icon {
                font-size: 28px;
                color: #8c939d;
                width: 178px;
                height: 178px;
                text-align: center;
            }
        }
    }

    .editor {
        width: 100%;

        :deep(.ql-editor) {
            min-height: 200px;
        }
    }
}
</style>